问：我的引擎似乎在公园时转换了，但是当我将齿轮轴移动到停车时，这是一个2000年的郊区内陆，什么coul

当车辆对电动机上的负载不利时，这可能是一个有故障的地图传感器的迹象（即将其放入齿轮上，转弯（利用动力转向压力开关）打开AC或使制动器接合）。歧管绝对压力（MAP）传感器感应发动机负载，并生成与进气歧管中真空量成正比的信号。然后，发动机计算机使用此信息来调整点火时间和燃料富集。当发动机努力工作时，进气门会在油门开放时掉落。发动机吸收更多的空气，这需要更多的燃料来保持空气/燃油比平衡。当计算机读取重载信号时MAP sensor, it adjusts the fuel mixture to slightly more rich than normal so the engine can produce more power. The computer will then retard (back off) ignition timing slightly to prevent detonation that can damage the engine and decrease performance. This may also be caused by other closely related components such as a dirty or failing mass air-flow sensor, a faulty throttle position sensor or potentially a vacuum leak. I would recommend having an expert from YourMechanic come to your location to diagnose and inspect your vehicle.